Pat,
What I would suggest is you give Spartan a call @ 800 722 3925 and give them your VIN # ask them what you would like to know about what your setup is, because they built the chassis and sent it...

Back in 2006, I had just bought the 84FCSB, from a woman in CT, it had 4 year Goodyear G159's on the steers... A month later I went to Key West for a week and on the return, 20 miles from my storage...